Cleaning and silencing means for engine exhausts



Sept. 13, 1932.

\ CLEANING AND 'SILENCING MEANS FOR ENGINE EXHAUSTS Filed ml, 29. 1929 2 Sheets-Sheet 1 /0 v INVENTOR Mame/s J 601. mzke BY F26.

ATTO R N EY M. J. GOLDBERG 1,877,296

, P 13, 1932- M. .1. GOLDBERG 1,877,296

CLEANING AND SILENCING MEANS FOR ENGINE EXHAUSTS 'Filed March 29, 1929 2 Sheets-Sheet 2 INVENTOR Mark/5 I604 1756/96 ATTOR N EY Patented Sept. 13, 1932 MORRIS J. GOLDBERG, or nnnorr, Wisconsin,

ASSIGNOR TO FAIRBANKS, MORSE & (30.,

OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS CLEANING AND SILENCING MEANS FOR ENGINE EXHAUS'IS Application filed March 29', 1929. Serial No. 356,977..

13 gines.

. A further object is to provide an improved device, embodying means for separating, ef-

fectively, any foreign particles, such as carhon, sparks, or water, from the exhaust of 5 internal combustion engines, before permitting the exhaust gasesto be expelled to the atmosphere. v

An additional object is to provide an improved device for .the purposes set forth,

which is neatand compact in arrangement,

which is readily accessible in cases or necessary repair or cleaning, nomical to construct and maintain.

' Further objects :5 pear from the following detailed description of parts and the accompanying drawings, in which, Fig.1 is a sectional elevation of a preferred form of the Fig. 2 is a plan view of certain internal portions of the device, as viewed along the line 2-2 in Fig. 1.

It will, of course, be understood that the present detailed description of parts and the accompanying drawings relate to a single preferred executional embodiment of the invention, and that substantial changes may be made in the described construction and arrangement of the parts, without departing from the spirit and full scope of the invention. v i

Referring by numerals to the drawings, 10 designates a base casting, which includes 'an I inwardly extending tube 11 serving as an inlet passage or compartment 12 for the ex- 15 haust gases from the engine. This passage entering and which is ecoand advantages will apthe cap device, and

tends to direct the exhaust gases to points within the device. Mounted upon, and detachably secured to the inner end of the pipe 11, .is a deflecting member 13, which in the preferred example, is formed substantially cup shaped and inverted, for purposes hereinafter appearing. A rim or edge 1 1 of the member 13, extends downwardly, and substantially surrounds a portion of the pipe 11, leaving an annular passage or compartment 15 between the member 13 and the pipe 11. It will be readily seen that the exhaust gases the tube 11 are deflected by a portionof the member 13 into the passage 15, and the direction of flow is thereby substantially reversed.

-Mounted upon, and securely attached to the base 10, is a cylindrical member 16, which forms with the base 10, a basin 0r chamber 17 to which water is supplied. A water supply pipe 18 is detachably secured to the base 10, and extends upwardly and inwardly to a point substantially centrally of, and above, member 13. This pipe .is provided with a spray head 19 which serves to spray water on the outer wall of the deflecting member 13. By this arrangement, means is provided for coolingeifectively the walls of the deflecting member 13, in order to present to the entering gases, a substantially cool defleeting surface, and further, by the pipe 18, provision is made for supplying water continuously to the base 17 It will be readily understood that thespray head 19 may be so arranged as to. spray a portion of the water, not only upon the member 13, but outwardly into the chamber in order further to cool the exhaust gases passing through this chamber.

In order to maintain a water level 20in the basin 17 an overflow or drain pipe 21 is provided, which is detachably secured to the base 10. It will be readily seen that the water level 20 may bevaried by the substitution of pipes 21 015 different lengths. In the preferredexample, such a length of pipe 21 has been chosen, that the water level 20 seals the rim lt' of the member 13. Under, certain operating conditions, it may be found that b permitting the rim the water level 20, better performance is attained. By either arrangement the exhaust gases from the passage 15, either pass throughthe water, or impinge upon its surface, in such amanner as to throw down any solid particles it may carry. Further, the gases are so directed by the passage 15, that their direction is again reversed before they enter a chamber or compartment 22. The Water is violently agitated by the impact of the exhaust, and a portion of the water is dispersed into finely divided mist and intermingled with the gases. By this arrangement, the exhaust impact is not only decreased, in order to silence the exhaust impulses, but the same means is utilized to extinguish effectively any burning carbon or sparks in the gases. fter passing the water level 20, the exhaust gases enter the chamber 22 formed by a cylindrical vessel or member 23. This member'is substantially smaller in diameter than the water base 16, and is removably positioned upon the member-16, by means of lugs 24, securely attached to member 23. An end 25 of the member 23 extends downwardy into and is sealed by, the water in the basin 17,, being in communication with the water in this basin, by means of an open bottom 26, which permits the water in the basin 17 to flow into the chamber 22. By reason of the smaller diameter of the member 23, an annular passage 27' is formed between the outer wall of the member 23 and the inner wall of the member 16. Further, the lugs 24 are so disposed, about and along the vessel 23, that the end 25 is supported an appreciable distance above the base 10. The vessel 23 is closed at the top by means of a plate 28 in which is provided an outlet opening 29 which permits the gases to pass from the chamber 22.-

In passing from the chamber 22, the gases are directed into a battle member 30, which is closed at the top by means of a plate 31. The battle 30 includes guide vanes 32, which are so disposed and constructed, as to impart to the gases, a swirling or spiraling action, or a distinct turbulence, as they pass radially outward. An enclosing or stack member 33 is supported upon the lugs 24. This member is substantially the same diameter as the member 16, and thereby forms a continuation for the passage or compartment 27, for com munication between the basin 17 and a chamber or compartment 34 formed thereby. As noted above, the gases passing through the baffle member 30 receive a whirling action, which tends to throw the heavier or water particles outwardly and against the inner wall of the member 33, whence these particles pass, by gravity, downwardly through .14 to be above pelled to the atmosphere through an outlet opening 35 rovided in the stack member 33. By the pretbrred arrangement of the bafile member 30, means is provided not only for separating and removing condensed vapor from the exhaust, but the same means is utilized to set up a whirling or retarding action, which action increases the path of travel and time in which the gases may fully expand in order to reduce and to silence, effectively, the engine exhaust pulsations.

number of the advantages of the features of construction described in detail passage 27 to combine-with the water inabove,will be apparent from the description of parts. In existing types of internal combustion engines and especially in those constructed for mar'ne use, the discharge of glowing particles, and the noise incident to the exhaust pulsations, has heretofore been a distinct disadvantage. In certain prevailing types of exhaust cleaners, some objection was encountered from drops of cooling water being thrown out into the atmosphere along with the exhaust. In the device described, the exhaust is effectively mullled, and all sparks, soot and condensed water are satisfactorily removed.

It is readily seen that the preferred arrangement of parts described in detail above, provides a device in which the exhaust gases are given a. tortuous path oftravel, in which 1. An exhaust silencer including a plurality of compartments, arranged one exteriorily of another, means for supplying a body of liquid to an inner one of said compartments, means for directing the engine exhaust gases into contact with said liquid,

for conducting the gases from saidliq'uid, means connected with said compartment for removing liquid particles carried by the gases, after being carried beyond said liquid, and means formed by an exterior compartment, for returning the separated particles to the body of liquid. 7

2. An exhaust silencer including a plurality of compartments, means for supplytoo ing a liquid to portions of said compartments, means associated with one of sai compartments for directing the engine exhaust into contact with the liquid in said compartment, means for removing condensed vapor from the gases, and means constituted by another compartment, disposed'exteriorly means formed by a second compartment, ex-

first named compartment, adaptterior to the ed'to return said particles to the liquid in said first compartment and adaptedto conduct exhaust gases-away from said first name compartment.

4. In an exhaust silencer, means forming a plurality of compartments, disposed one within another, means forsupplying a liquid to portions of said compartments, means for directing exhaust gases into contact with said liquid, and separating means adapted to effect return ofany condensed vapor carried by the gases, through the outer compartment.

5. In an exhaust silencer, an enclosure hav and an outlet opening, a gas deing an inlet opposite said inflecting member positioned let, means for supplying a liquid uniformly over the exterior surface of said member, and into said enclosure, means for maintaining a constant liquid level in said enclosure and about a portion of said deflecting. member, means forcentrifugally drying said exhaust gases, disposed between said inlet and outlet openings, and means for conducting liqui I articles from said drying means to the body of liquid in said enclosure,' and substantially out of contact with the gas flow through the silencer.

6. In an exhaust silencer, an enclosure having an inlet and an outlet opening, a deflecting member positioned opposite and adjacent to said inlet opening, means for supplying a fluid to said enclosure and member, and a bafile structure disposed between said inlet and outlet openings and having a plurality of radially disposed vanes adapted to impart a rotary movement to said exhaust gases, an arranged to direct the gases toward the walls of said enclosure. N

7. In an exhaust silencer, an enclosure having an inlet and, an outlet opening, a member disposed Within said enclosure and spaced from a wall thereof, to form a passage between said member and enclosure, means for supplying a liquid to portions of said member and enclosure,

the liquid in said ticles from the gas,

liquid means, beyond the of said container, "ing through said for imparting a rotary motion to said bafile member being adapted particles from the gases, particles to said passage to the liquid in said ening vanes the gases, toseparate heavier and to deliver such for gravity return closure.

8. In a cleaning gine exhaust gases,

and silencing device for enan enclosure having an inlet and an outlet, means for supplying a liqui to a portion of said enclosure, means for conducting the gases through the liquid, means disposed between said conducting means an outlet, for removing solid and liquid particles carried by said gases, and means forming a chamber for conducting gases away from the liquid, said chamber constituting with said enclosure. an annular return'passage for particles removed from the gases.

9. In a cleaning and silencing device for engine exhaust gases, a container having an inlet opening and an outlet opening, means for maintaining a body of liquid in the container, a heat transferring member in said container, means for directing exhaust gases against one side of said member, means for directing a flow of cooling liquid against the and a bafile member havopposite side thereof, said member extending substantially into ranged to cause through, means outlet opening,

the body of liquid and arthe passage of gas therebetween said member and for separating liquid parand a passage for returnin said liquid particles to said body of liqui said passage arranged to prevent admixture of such particles with the flow of gas through the device.

' 10. In a cooling and silencing device for engine exhaust gases, an enclosure having an inlet opening and a outlet opening, an inlet tube extending into the enclosure from the inlet opening, a heat trasferring member disposed in said enclosure, and carried by said inlet tube, means for directin exhaust gases against one side of said mem er, means for directing a cooling liquid against the opposite side of said member, means for retaining a predetermined quantity of said cooling liquid in said container, means formed by said transferring member for directing the exhaust gases through a portion of the retained heat transferring member, for drying the gases,'and means within the enclosure for conducting liquid and gases in opposite directions from the drying means, and out of contact with each d other.

11. In a cleaning and silencing device for engine exhaust gases, a container having an inlet and an outlet opening, means for maintaining a level of liquid in a portion an inlet fitting extend-' liquid, a. heat transferring member associated with said inlet fitdirecting exhaust gases ting, means for against one side of said transferring memer, means for directing a flow of coo1- ing liquid against the o posite side of said member, means formed y said member for 5 directing the gases through a portion of the for the return of particles carried by the gases, to the body of liquid in the container; and means forming an expansion chamber within said container and directly connected to the outlet thereof.

MORRIS J. GOLDBERG. 

